Liquid rheostat



Oct. 27, 1925- 1,559,473-

H. A. TAYLOR mourn Rrwos'rm Filed July 1924 Wu Hm Hull Hark/4rd 725/102INVIKTOR Patented Oct. 27, 1925.

UNITED STATES PATENT OFFICE.

LIQUID RHEOSTAT.

Application filed July 8,

To all whom it may concern:

Be it known that I, HOWARD A. TAYLOR, a citizen of the United States,residing at ater-town, in the county of J efierson and State of NewYork, have invented new and useful Improvements in Liquid Rheostat-s, ofwhich the following is a specification.

This invention relates to electrical apparatus, particularly rheostats,and has for its object the provision of a novel device of this characterusing a liquid as the resistance element, the construction andarrangement being such that connections may be made to obtain anydesired resistance for controlling a circuit.

An additional object is the provision of a device of this characterwhich will be simple and inexpensive in manufacture, easy to install,positive in action and a general improvement in the art.

lVith the above and other objects and advantages in view, the inventionconsists in the details of construction and arrangement of parts to behereinafter more fully described and claimed and illustrated in theaccompanying drawings, in which Figure 1 is aperspective view of thedevice.

Figure 2 is a vertical section on the line 22 of Figure 1.

Figure 3 is a detail terminal members.

Referring more particularly to the drawing, the numeral 10 designatesthe body of the device which in actual practice may be formed as arectangular or other shaped block of cement or other suitable insulatingmaterial cored or drilled to provide spaced recesses or pockets 11 forcontaining a suitable liquid 12 having any desired conductivity orresistance to the passage of an electrical current.

Extending transversely through the block 10 in spaced parallel relationand traversing the pockets 10 are bolts 13, preferably of brass,surrounded by steel sleeves 14L provided for the purpose of preventingor retarding corrosion. The heads 15 of the bolts engage against oneside of the body, and on the other ends of the bolts are clamping viewof one of the 1924. Serial No. 724,836.

nuts 16 which engage the opposite side of the body.

It will be noted that there are three pocK ets 11 and three sets ofbolts. Connection may be made to any of the bolts and the bolts of thedifferent series may be connected by bridging elements 17. In this wayit is apparent that the liquid path for the current may be made as shortor long as desired so as to vary the resistance to meet the requirementsof the circuits in which the device is used.

lVhile I have shown and described the preferred form of the invention itis to be understood that I reserve the right to make such changes in theconstruction as will not depart from the spirit of the invention or thescope of the subjoined claims.

Having thus described my invention, I claim 1. A rheostat comprising abody of insulating material formed with a plurality of pocketscontaining a more or less current conducting liquid, and a plurality ofterniinals extending to each pocket at spaced points, each terminalincluding a bolt extending transversely through the body in intersectingrelation to the pockets.

2. A rheostat comprising a body of insulating material formed with aplurality of pockets containing a more or less current conductingliquid, and a plurality of terminals extending to each pocket at spacedpoints, each terminal including a bolt extending transversely throughthe body in intersecting relation to the pockets, and a non-corrodiblemetallic sleeve surrounding each bolt.

3. A rheostat comprising a block of nonconducting cement formed with aplurality of pockets containing liquid, a series of bolts extendingthrough the body and traversing the respective pockets, clamping nuts onthe bolts, and elements engageable with the bolts in the successiveseries for making changes in the length of the liquid path to hetravelled by the current.

In testimony whereof I aflix my signature.

HOIVARD A. TAYLOR.

